The rigid-flexible coupling dynamics' modeling and modal analysis were employed to study the system consisted of square plansifter and flexible suspender.
针对高方平筛和其上固结的柔性吊杆组成的动力学系统，进行了刚柔耦合的动力学建模和振动模态分析。
By simulating the track irregularities with trigonometric series method, the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge.
利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
Secondly, the whole vehicle rigid-flexible coupling modal equipped with the frame is built and analyzed to obtain the load histories through driving on cross-country path and strengthen-road .
其次建立该整车的刚柔耦合动力学模型，并进行越野路、强化路等路面的整车动力学仿真，得到相应的模态位移时间历程；
The expressions of coupling FRFs which are formed by the modal parameters of launch vehicle with free interface and of payload with free interface or fixed interface are given.
给出了以自由界面的运载火箭模态参数和自由界面或固定界面有效载荷模态参数构成的耦合频响函数表达式。利用耦台频响函数可以进行不同有效载荷的界面加速度响应之间的转换。
The expressions of coupling FRFs which are formed by the modal parameters of launch vehicle with free interface and of payload with free interface or fixed interface are given.
给出了以自由界面的运载火箭模态参数和自由界面或固定界面有效载荷模态参数构成的耦合频响函数表达式。利用耦台频响函数可以进行不同有效载荷的界面加速度响应之间的转换。
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